Shared versus Separate Possessives

Do you ever wonder, as you’re writing your term paper, whether to say “Clark’s and Sacagawea’s mooseskins” or “Clark and Sacagawea’s mooseskins”? Maybe you don’t, but this is a question of shared and separate possessives, and knowing how to punctuate your sentence so it says what you want to say is very useful. Here are [...]